Our company is looking for a full time or consultant developer.
The job is to maintain and continue actively develop web application /
internal webservices written in clojure.
We use compojure web framework, darcs for repository.
Remote work via ssh is ok.
Haskell knowledge is a big plus. We
Check for example this code:
http://shootout.alioth.debian.org/u64q/program.php?test=pidigitslang=clojureid=1
It is slower than scala 8 (!!!) times.
But peppering it with types can easily bring it on par with java/
scala.
Any takers ?
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Anyone interested in full time employment working with haskell and
clojure in San Dimas, CA (local job only, NO telecommute) please let
me know.
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Sorry, forgot to mention, and i already got questions about it. No
worker visa sponsorship, no relocation from abroad. US only.
On Jun 20, 2:36 pm, Vagif Verdi vagif.ve...@gmail.com wrote:
Anyone interested in full time employment working with haskell and
clojure in San Dimas, CA (local job
What do you mean by navigation ? Slime supports jumping to function
definition (Alt-.) and back (Alt-,) And this works not only in your
own code but also in all contrib libraries.
So what else do you need ?
On Jun 12, 6:50 pm, yair yair@gmail.com wrote:
Hi,
With swank and slime all set-up
Can it be used as an inference (rule) engine ?
On Apr 9, 2:27 pm, David Nolen dnolen.li...@gmail.com wrote:
Logos is finally in good enough shape to be worth publishing to Clojars.
There are really too many changes to enumerate here, but if you're familiar
with Prolog, Logos is now far enough
Jim, i assume you are familiar with haskell (monads - haskell :))
So my question is, can you describe the difference in working with
monads in dynamic language (clojure) with working with monads in
haskell.
From my own experience i would say that without a firm help from
typing system i would
It would be better if your macro would accept maps and vectors,
because those can be prepared somewhere else and passed around as
parameters. Your current macro allows only hardcoding.
On Feb 3, 4:23 pm, Alexander Yakushev yakushev.a...@gmail.com wrote:
(deflayout frame
{:west gamepanel
Jumping to the definition of function: Alt-.
Returning back Alt-,
All other (and much more) features are implemented in slime (emacs
package).
On Jan 9, 11:01 am, Alex Baranosky alexander.barano...@gmail.com
wrote:
Hi,
I'm most used to using Intellij, since it is what I use everyday at work
Haskell has aha moments too. And it is not lisp.
The definition of lisp i accept is much simpler and much more
obvious: source code of the program is a valid data structure in that
language.
On Dec 19, 11:33 am, Tim Daly d...@axiom-developer.org wrote:
There have been discussions, here and
Maybe clojure should adopt linux versioning scheme, where even numbers
are stable production clojure and odd numbers are development branch ?
On Dec 12, 7:09 pm, Stuart Halloway stuart.hallo...@gmail.com wrote:
Clojure 1.3 Alpha 2 is now available at
http://clojure.org/downloads
0
On Nov 15, 8:52 am, Chris christopher.ma...@gmail.com wrote:
If you have a function that needs to treat multiple arguments as a
group, what forces drive you to represent this as a single sequence
argument vs. an argument? To give a concrete example, why does
+ work like
(+ 1 2 3 4)
Yes, I have a flex app, talking to compojure backend via JSON.
On Aug 14, 12:40 pm, nchubrich nchubr...@gmail.com wrote:
I'm wondering if anyone has any experience developing Clojure
applications with a Flex interface, and if so, what is the best way of
going about it.
I also wonder if
On Jul 26, 6:34 am, jim jim.d...@gmail.com wrote:
One thing I'd like to do is implement a business rules engine in
Clojure running the Rete algorithm or something similar. Sort of a
Drools in Clojure.
Wouldn't it be easier to implement clojure scripting for Drools ? As
far as i know Drools
Back in the days when i was using common lisp (sbcl) i used this
inference engine: http://lisa.sourceforge.net/
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I'm happy that this guy self eliminated himself from clojure
community. But experience tells me not to be so sure. His kind tends
to come back and unfortunately is very persistent.
If downloading couple of jar files and dropping them into the
classpath is too much for him, then he is definitelly
In clojure map works like zipWith.
So you can pass to it vector if you want just plain zip: (map vector
colls)
That makes making a special named function unnesessary.
On Mar 13, 6:55 am, Marmaduke mmwood...@gmail.com wrote:
Hello,
I'm new to Clojure, but in other languages, zip is a
Years of using ASP and JSP convinced me that writing markup and code
in the same file is evil.
That's why i prefer StringTemplate. It is perfectly usable with
clojure and accepts clojure maps, yet it does not allow you to
incorporate arbitrary code into your templates. Everyone is happy,
I often find myself creating one line helper functions that i use very
often just because it is easier to write them than try to find them in
contrib.
Here's one:
(defn- to-list [x] (if (vector? x) x [x]))
This one is often needed when working with html form fields.
Is there such a function in
Whatever you guys chose, do not go the immutable road. Compojure took
that approach and now many people (including me) are stuck with
situations where they need to update session in a middle and pass it
somewhere else, and they can't. Session is a data storage, just like a
database.
One of the
On Feb 3, 7:18 pm, James Reeves weavejes...@googlemail.com wrote:
On Feb 3, 8:44 pm, Vagif Verdi vagif.ve...@gmail.com wrote:
This again is something that's limited to Compojure, and not
necessarily indicative of a problem with the functional approach.
I agree. As long as session
+1 for paredit. Writing lisp without an IDE geared towards the
language is miserable. Bracket matching is a must-have feature for
lisp programmer. Higher in importance than anything else.
On Jan 27, 9:48 am, Jarkko Oranen chous...@gmail.com wrote:
You should really give paredit.el a go some
There are other NoSQL datastores written in java, like Voldemort.
Perhaps if you investigate them, you will find one that will be much
easier to integrate with clojure.
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I wonder if just released http://code.google.com/p/google-collections/
google-collections java library could be of any use to clojure
implementation ? They have there High-performance immutable
implementations of the standard collection types and many other
goodies.
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On Dec 22, 2:10 pm, jim jim.d...@gmail.com wrote:
Chouser,
You're right that maybe-comp is simpler. Once you realize that the
functions you want to compose are monadic functions under the maybe-m
monad, you get that composition for 'free', with no further mental
effort.
Except different
FYI
There a binary protocol library http://hessian.caucho.com/
It is pure java, supports all the primitives BERT has, has bindings to
many languages including Python, Ruby, Erlang, even Flash. And of
course because it is java, it is readily available from clojure.
It also supports streaming of
Welcome to the big club of people who in last 50 years came up with a
brilliant idea to fix lisp.
As for Ten parentheses, i do not see a single one. Noone notices
starting parens because they are markers saying this is a function.
And of course noone notices ending parens because they are for
On Dec 18, 4:59 pm, Martin Coxall pseudo.m...@me.com wrote:
But I'm trying to think of it from the point of view of Joe Q. Coder, who
will take one look at our beloved elegant, expressive Clojure, see all the
parens and run screaming.
Let James Gosling worry about Joe Q. Coder. He does a
This is not a suggestion or anything, just entertaining myself with
some uneducated thinking.
What if all lazy functions (map filter etc) would check some global
value and decide upon it lazyness ? Then we could do something like
this:
(eager
(map ...(filter ...)))
That would allow to not
On Oct 2, 1:37 pm, Meikel Brandmeyer m...@kotka.de wrote:
You can do so by with doall:
(doall (map ... (filter ...)))
Unfortunately this is not true. Yo are paying penalty for lazyness in
this case.
Try it yourself. Write non lazy versions of map and filter and time
them against
I use clojure-mode with slime. But i did not use clojure-install.
I also do not run clojure from within emacs. I run it via script, and
then connect to it via slime-connect.
I prefer it much more than clojure-install, because i have a control
over where my clojure and other libraries are
I would argue that macros always should be syntax wrappers for
functions. Coding the logic into a macro in most cases is a mistake.
So first write the function that does the work. Then write a macro
that simplifies a syntax to call that function.
Thx to all. ns-unmap and remove-ns are what i need.
From my CL experience i was looking for something like unitern.
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I often refactor my code and move some functions to new modules.
Unfortunately i cannot load them, because clojure says that function
with such name is already loaded from another namespace. I could not
find nothing better but to close my clojure session (which means bring
down the web server)
On Aug 25, 7:37 pm, Alan Busby thebu...@gmail.com wrote:
Reducing it further, I'd be interested just to hear more about the contrast
of static typing versus macros. Which is more beneficial for different
situations and why?
I fail to see how macros can be contrasted to static typeng. They are
I'm using str-utils2 for a couple of months now. Do not care about the
old library.
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Try contrib library duck-streams.
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On Aug 7, 1:23 am, Daniel Lyons fus...@storytotell.org wrote:
This is the difference between FreeBSD and NetBSD. I agree, but I also
find it useful to crack open core and contrib to see coding examples
and to understand algorithms.
I'd suggest to include into library for teaching
When reflection warning is on, i get 2 warnings on every my file:
reference to field getClass can't be resolved.
reference to field getClassLoader can't be resolved.
Is this something i should be worried about ?
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On Aug 3, 1:52 pm, luke luke.vanderh...@gmail.com wrote:
So you could easily wrap an entirely functional code block
in a transform-to-transient macro that translates the functions to
their transient counterparts, and gain all the performance benefits?
I do not think it would be that easy.
There was this awesome browsable list of clojure libraries with short
description of each, list of functions and even links to source.
Now it all replaced with link to github.
Please bring the user friendly and easily browsable documentation
back!
On Aug 3, 6:19 pm, ataggart alex.tagg...@gmail.com wrote:
Here's the well-hidden, auto-generated docs for clojure-contrib:
http://richhickey.github.com/clojure-contrib/
Thx. That's what i've been looking for.
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Today i saw the announcement
http://groups.google.com/group/Qilang/browse_thread/thread/592773c562017d87
that the creator and maintainer of another modern lisp dialect Qi
closed the shop and went to India.
The effect on Qi was so drastic that the Qi community are discussing
right now which
Before creating clojure Rich Hickey tried several times to marry
Common Lisp and java:
http://jfli.sourceforge.net/
http://foil.sourceforge.net/
http://lisplets.sourceforge.net/
He spend lots of time and effort to come to realization that something
like clojure is nesessary.
Maybe it is time
On Jul 19, 9:49 am, Wilson MacGyver wmacgy...@gmail.com wrote:
There are already two webframework in clojure being developed.
Compojure and cascade. While I'm eagerly waiting to see how these two
and others will envole
Not much to wait there. Compojure is quite stable and feature rich
On Jul 19, 4:19 pm, Howard M. Lewis Ship hls...@gmail.com wrote:
You seem to have a better idea of what's going in in Cascade than I
do, and I'm the one writing it. Please be patient.
I was replying to the author of the thread who said there are 2
clojure web frameworks. Cascade could very
I got into funny discussion about speed of lazy lists versus eager
lists in clojure:
http://www.reddit.com/r/programming/comments/91ha3/how_to_start_using_lisp_at_work/c0b44xp
I did this small example to test it:
user (time (dorun (map #(+ % 1) (map #(+ % 1) (map #(+ % 1) (repeat
100
Potentially interesting library for clojurians. Java STM
implementation: http://www.deucestm.org/
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On Jul 7, 4:08 am, Roman Roelofsen roman.roelof...@googlemail.com
wrote:
* Parametrization of function groups *
Lets say I have a bunch of functions that provide database operations
(read, write, delete, ...). They all share information about the
database the operate on. In an OO language, I
Here's some warts, when working with boolean fields from sql
databases.
(if (with-db (sql-val [select convert(bit, 0)])) Yes, no)
will return Yes. This is because contrib.sql returns java Booleans,
not clojure tru/false.
(if (= false (with-db (sql-val [select null]))) Yes, no)
will return no.
I just got an advise from IRC to use (boolean x).
Problem solved :)
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On Jun 25, 8:29 am, Stuart Sierra the.stuart.sie...@gmail.com wrote:
So AOT-compilation makes the code slightly faster to *load* when your
application starts, because it doesn't have to compile the code on the
fly. But Clojure compiler is very fast, so the difference is barely
noticeable.
What server are you running it on ? Tomcat ?
There's a compojure web framework that already has html combinator
library.
Check it out here: http://preview.compojure.org/docs
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Clojure, enclojure, compojure, conjure... I say enough with jure
already.
There are lot's of beautiful project names like Tapestry, Wicket,
Hunchentoot, that do not include parts of the programming language
name they are written in.
How about a normal word, like Eclair ?
On Jun 18, 8:39 am, Howard Lewis Ship hls...@gmail.com wrote:
I am having fun learning it by creating a simple web framework.
Howard, that's interesting to hear from a Tapestry creator.
I'm in a process of preparing to write a web application with clojure
web framework compojure. But if you
On Jun 2, 7:55 am, Andrew Wagner wagner.and...@gmail.com wrote:
You can use destructuring in your predicate's arg list:
Not to hijack the thread but...is there some reason clojure doesn't just
just call this pattern-matching? Is it different somehow?
Pattern matching matches not only
I would greatly appreciate instructions how to setup emacs to connect
to already running clojure.
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Fear not. G1 is in Open-JDK, so no one can forbid you use it anyway
you see fit.
The clause in EULA is simply a lawyer talk, to cover their asses if
someone uses experimental feature in production and looses his data or
crashes server.
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On May 27, 11:57 pm, kinghajj kingh...@gmail.com wrote:
Example:
(def add5 ($ + 5))
(add5 3)
I love partial application in haskell. But do not see the need for it
in clojure with its succinct syntax for anonymous functions:
(def add5 #(+ 5 %1))
(add5 3)
Besides clojure's anonymous
Do you have plans to add connect/disconnect to existing running Repl
over the network ?
Emacs has this mode with slime and it is very handy in developing web
applications.
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i saved it with wget and then fixed the files with sed to point to
right resources and urls.
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What are the use case scenarios where one is preferable to the other
in clojure ?
It looks to me like vectors almost completely overtake lists for all
purposes.
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When i use slime with lisp, it shows me function parameters, when
cursor is on a function name. But with clojure it only shows me
Evaluation Aborted. Is this because that feature not implemented, or i
setup something wrong ?
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The power of functional programming is in small number of orthogonal
functions. I'm afraid all these combination functions will quickly
transform clojure into php.
Besides it introduces several ways to do the same thing - more
confusion (especially to newbies).
Instead of littering the language
On Mar 17, 11:50 pm, Laurent PETIT laurent.pe...@gmail.com wrote:
The comp function in clojure.core does just this.
I know about comp function. I was talking about introducing a special
syntax for it.
Since one of the fundamental techniques of functional programming is
composing chains of
Is (first (filter ..) lazy like in haskell ?
I would hate to wait for filter to get all results just to throw them
out and pick the first one.
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